those letters addressed to president obama and mississippi republican senator roger wicker. we have learned the suspect is a man from tupelo, mississippi, a man with a long history of sending letters to lawmakers in washington. investigators say that early tests on those letters were positive. that mail never came close to the president or the senator for that matter. they set off alarms though in postal screening facilities away from the white house and away from chill. i want to start our coverage this hour now with mike emanuel who is live on capitol hill and there is a lot we can report now that we could not several hours ago. what do we have now. >> that's right, bill. we can tell you the man's name is kenneth curtis, he is from tupelo, mississippi. the arrest made we understand this evening unclear whether charges will be filed tonight or tomorrow and where they will be filed you better believe federal law enforcement and prosecutorial people talking about exactly how to proceed from this point. we know that these letters addressed to president obama and senator roger